Sealing tag attachment



Dec. 16, 1941. R. E. wALLsTRoM v SEALTNG TAG ATTACHMENT Filed March 14, 1958 INVENTOR Fez/en v #wg/ram Patented 16, 1941 I UNITED STATES PATENT OFFICE SEALING TAG ATTACHMENT nennen E; wanna-om. Newark. N. J.. minor', by menne assignments. to American Flange Manufacturing Co., Inc., New York, N. Y., a corporation of Illinois Application March 14, 1938, Serial No. 195,706

1 Claim. (Cl. 22o- 39) The invention relates to a means `of attaching a. sealing tag to a bung fitting whereby the closure plug for the ntting can be secured to the tag and sealed in position.

An object of the invention is to provide a sealing tag arrangement which may be eifectively utilized with the type of fitting designed for use with a sealing cap or cover arranged to completely enclose the entire fitting structure.

Another object of the invention is to secure the tag to and arrange the same on the iitting in a manner which will avoid interference with the assembly of the iitting members together and on the container, and with the sealing of the cap or cover upon the iitting.

A further object of the invention is to provide a sealing tag of the character described which is designed as a fixed part oi one of the fitting members so as to avoid the handling of a separate part in the assembly of the fitting means and the application thereof to the container.

A still further object of the invention is to provide a sealing tag of the character described, which is so arranged on the fitting that when the latter is operatively positioned on the container, detachment of the tag from the tting will be effectively prevented.

The invention possesses other objects and features of advantage, some of which, with the foregoing, will be set forth in the following description oi the preferred form of the invention which is illustrated in the drawing accompanying and forming part of the specication. It is to be understood, however, that variations in the showing made by the said drawing and description may be adopted within the scope ofthe invention as set forth in the claim.

Referring to said drawing:

Figure 1 is a longitudinal sectional view of a bung fitting applied to a container wall and having all parts of the tting, including the sealing tag of my invention, in operative position.

Figure 2 is a plan view of the tting as illustrated in Figure 1, with the exception that the sealing cap is removed.

1 in a wall I of a metal container. In the form of the iitting illustrated, there is provided a bushing 9 which extends through the opening 'l and has provided therein a laterally extending iiange II which abuts against the inner side of the wall 8, the latter being formed with anvoutwardly extending embossment I0 surrounding the opening I so as to provide a depression to accommodate the flange II.` At the outer side of the wall, the fitting isprovided with a backing member I2 having a lateral ange I3 between which and the flange II the wall portion surrounding the opening is clamped. provided with a sleeve portion I4 which encircles and embraces the bushings, and the parts are held against axial displacement, by means of a curl I5 on the bushing, which is flanged over the outer end of the sleeve portion Il. Relative rotational displacement of the bushngand backing member with respect to each other and to the container wall is prevented by means of projections I'I formed in the iiange II, which seats in oifsets I8 formed in the wall and which in turn seat in depressions I9 in the ilange I3 of the backing member, as clearly shown in Figure 3.

The bushing 9 is formed with a threaded bore or opening 2| which is arranged to be closed by an externally threaded plug 22 having a head or shoulder 23 arranged to seat upon the curled end of the flange 9. To prevent tampering with the fitting or the unauthorized removal of the plug from the tting, a sealing cap or cover 24 is usually arranged for positioning over and attachment to the fitting. As here shown, the cap is arranged tobe secured directly to the backing member I2 and is provided with a skirt 21, the free edge of which is arranged to grip the outer edge of the backing ring flange I3. To provide for the effective gripping of the flange, the outer peripheral portion 28 of the latter is folded under the contiguous portion of the flange, and at the same time the cap is designed to embrace both of said portions of the flange, it being noted that the portion 28 is spaced a sufficient distance from the adjacent wall portion to permit the free edge of the cap to be inserted between the ange and wall. Preferably, a sealing gasket 29 is interposed between the flange and an overlying offset portion 3l of the cap. With the type of tting and cap construction thus described the cap when operatively secured on the ntting, will completely enclose the entire fitting structure as well as the plug or bung opening.

In many instances it is desired to seal the plug in closed position without recourse an en- The member I2 is also e closure or the like, such as the cap 2l. When such an arrangement is resorted to, the plug is usually secured by means of a sealing wire to a metal tag or clip which is fastened to some fixed part of the tting or adjacent wall portion, the tag or clip being perforated or otherwise formed for ready connection with the sealing wire. Furthermore, in many instances it is desired to not only seal the plug in position with a sealing means as above described, but with a sealing cap as well. It is one of the main features of the present invention that the sealing of the plug may be readily effected in either or both of the manners set forth, and this notwithstanding that the cap attaching arrangement is of a type in which all portions of the itting as Well as the plug will be completely enclosed by the cap when the latter is in operative position.

As previously explained, the outer portion of the ange I3 is held spaced from the adjacent surface of the container wall, and it is within such space that a sealing tag 32 is arranged. The tag is usually formed of wire or flexible strap metal, and is here shown in the form of a clip made of strap metal. Although the tag is disposed between the ange I3 and container wall, it is xed, in the illustrated embodiment of the invention, only to the ange, and is desirably kept independent of such Wall. More particularly, the tag is attached to the ange, by spot welding same to the underside of the flange, and preferably in order that the body of tag may lie at against the body of the iiange, the folded, portion 28 is interrupted to provide a slot or opening 33 through which the tag is extended to project radially outward from the ange as clearly shown in Figure '4. The placing of the tag in the slot provides a more Secure and shielded positioning of the tag, and at the same time permits the protruding portion of the flange to be readily bent around the flange periphery for connection with the sealing wire 34,01' the plug as will be clear from Figure l.

Usually when the tag is used to anchor the plug and is thus connected to the wire 34, the

latter is threaded through eyes provided in exposed portions of the plug and in an eye 36 provided in the tag, the ends of the wire being twisted together and sealed with a fusible wafer 31 as indicated in the drawing. It will be noted that when the tag is bent over the ange periphery, it will readily conform to the shape thereof, and due to its extreme thinness, practically no protrusion will be produced. Thus when it is desired to enclose the fitting and plug with the cap, that is, after the tag has been connected to the sealing wire, the cap skirt may be applied to the ange vperiphery as easily with the tag extending over the ange as with the tag entirely omitted, it being noted that when the cap is applied with the tag over the flange, the gasket 29 is placed over the tag and thus the slight irregularity produced by addition of the tag, may be readily assimilated and with no strain on the tting or the cap applying tool.

As will be readily evident the cap may be as easily applied whether the tag is anchored to the plug or is merely allowed to extend over the flange. Furthermore, should it be desired for any reason to apply the cap without enclosing the tag therein, the cap may be applied in the normal manner and the tag will, as may be seen by the lower dotted line in Figure 5, be depressed slightly to fully clear the portion of the flange gripped by the cap, such depression being readily permitted since the tag is preferably secured to the flange only 4a point considerably inward of the outer edge oi' the flange.

In closure structure for containers, a securing ring member to overlie a container wall around an opening therein, said ring member having a collar portion and a laterally extending skirt portion, said skirt portion having its periphery turned over to form a bead for the reception of the skirt of a cap seal, a sealing tag secured to the underside of said skirt portion inwardly of said bead and having a portion extending out beyond said beaded periphery and turned upwardly about the same, said bead being channeled to receive the` extending portion of said seal tag, the cap seal enclosing said tag and having its skirt introduced under said bead without obstruction from said seal tag and the securing of said ring member in place on the container wall will also secure said seal tag in operative position.

REU'BEN E. WALLSTROM. 

